Bulletin Boards - Thread: The Maths Master

By Arceus234090 (82)
On 19 Oct 2011 19:51

I have a few for you.

1. Prove pi = 3.14 and not 4

2. Find d^2y/dx^2 ((pi*X^5)/2X). Show work.

3. Prove 1 = -1.

DO IT.

CHEESE! For everyone!

By LinkZelda (1070)
On 19 Oct 2011 19:52

17=0.83x+7.5x
17=7.88x
So -17< or =7.88x
Divide by 7.88 to get
x> or =2.16
Let y replace 17.
y < or = 7.88x ±0
I can't draw the graph but, I can tell you the gradient is 7.88x. The line is straight and the y intercept=0. That should be enough to draw

Hate is such a weak emotion

By LinkZelda (1070)
On 19 Oct 2011 19:59

1. Let's prove by contadiction. Suppose Pi=4. Then the area of a circle Pi x r^2> or =4. But there is an area of a circle > 4. Contradiction.

2. Find what?
3. In order to prove 1=-1 I'll prove by contradiction again. Suppose that 1=42. Then 1+1=84. 2+2= 168. 2n=84n, but that is algebraicly wrong. Therefore 1=-1.

Hate is such a weak emotion

By Arceus234090 (82)
On 20 Oct 2011 00:09

Try not using common knowledge, cheater.

1. Not even close. This is better when shown with pictures. Forget it.

2. Try learning Calculus. Find the second derivative of the parenthised equation.

3. WWWWAAAAYYYYYY OOOOFFFFFFFF. You cant prove it with preset variables.
Here's correct proof:
1 =1
1 = sq root(1^2)
1 = sq root(1)
1 = ±1
1 = -1
:)

CHEESE! For everyone!

By Arceus234090 (82)
On 20 Oct 2011 00:11

I have bested you in Maths. I am the new master.
With that, this thread should die.

CHEESE! For everyone!

By mlmc16 (41)
On 20 Oct 2011 03:21

The distinguished Arceus234090 spake:

I have bested you in Maths. I am the new master.
<br>With that, this thread should die.

OK what's with you guys obsessed w/ math/algebra/calculus. You guys are freaking me out..I'm barely taking Algebra 2...I've had enough with numbers..D:

Music is one of way to express your feelings, passion and emotions.

By Darmani Link (2820)
On 20 Oct 2011 05:16

The distinguished LinkZelda spake:

17=0.83x+7.5x
17=7.88x
So -17< or =7.88x
Divide by 7.88 to get
x> or =2.16
Let y replace 17.
y < or = 7.88x ±0
I can't draw the graph but, I can tell you the gradient is 7.88x. The line is straight and the y intercept=0. That should be enough to draw

thanks for helping me with the question my teacher said "whoever gets it right first gets extra credit. :U

I'll be back every now and then

By Darmani Link (2820)
On 20 Oct 2011 05:28

try this one.

98-2^51(-74)+93x < 59.97
95

find X
^ means exponent
lets hope u liek inequalities..

I'll be back every now and then